The essential oils of Zingiber cassumunar, Zingiberaceae, were isolated from its rhizomes and leaves by hydrodistillation. Analysis of the oils by GC and GC/MS revealed that the rhizome oil contained terpinen-4-ol (50.5%), (E)-l-(3,4-dimethoxyphenyl)buta-1,3-diene (19.1%), (E)-1-(3,4-dimethoxyphenyl)but-1-ene (6.0%) and β-sesquiphellandrene(5.9%)as major constituents out of 21 compounds identified. In the leaf oil 39 components were identified, and the main compounds were found to be l(10),4-furanodien-6-one (27.3%), curzerenone (25.7%) and β-sesquiphellandrene (5.7%).
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Bordoloi et al. (1999) studied this question.
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